640054890

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{7111721}}^1$

素因数の和:7111734

約数の個数: 24

約数和(自身を含む): 1664142948

約数和(自身を除く): 1024088058

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 7111721, 14223442, 21335163, 35558605, 42670326, 64005489, 71117210, 106675815, 128010978, 213351630, 320027445, 640054890]

約数ペア:

[(1, 640054890), (2, 320027445), (3, 213351630), (5, 128010978), (6, 106675815), (9, 71117210), (10, 64005489), (15, 42670326), (18, 35558605), (30, 21335163), (45, 14223442), (90, 7111721)]